Gate for coal-pockets.



'PATENTED MAR. 24.1908- I No'. 882,804;

11.3mm. GATE FOR GOAL POGKETS. APPLICATION FILED PB]. 13. 1907'.

2 sums-sun! 1.

rials PETERS cm, wnsumcron, n c

No 882,804,. PATENT-ED MAR. 24, 1908.

A. SUCK.

GATE FOR OO'ALPOGKETS. APPLICATION rinnn FEB-13.1907.

2 sums-sum 2.

NORRIS PETERS ca, WASHINGTON, n. c,

, soft coal.

UNITED STATES PA TEN T OFFICE.

ADOLPH SUCK, OF BOSTON, MASSACHUSETTS.

GATE FOR COAL-POCKETS.

To all whom it may concern:

Be it known that I, ADoLPH SUoK, of Boston, in the county of Suffolk andState of Massachusetts, a citizen of the United States, have inventedanew and useful Improvement in a Gate for a Coal-Pocket, of which thefollowing is a specification.

The purpose of my invention is to provide an outlet and gate for a coalpocket which may serve the purpose both of a discharge and of a screenso that the coal as it falls from the pocket has the dust and smallmatter screened out of it during its discharge, means being alsoprovided to shut off the supply of coal as occasion may require. When soarranged the embodiment of my invention shown in the drawings isespecially useful for hard or anthracite coal. WVhen, however, soft orbituminous coal is to be discharged, the screen can be removed and theoutlet enlarged if thought best.

My invention will be understood by reference to the drawings in which-Figure 1 is a vertical section of an apparatus embodying my inventionand arranged for use with hard coal. Fig. 2 is a plan, a part beingbroken away to show the interior construction, and Fig. 3 is a verticalsection corresponding to that of Fig. 1, the screen being removed, theapparatus being arranged for use with soft coal.

A is the floor of the pocket from which extends downward through anopening therein a vertical chute B. A shelf C, C extends part way acrossthe passage in the chute and practically closes the outlet therefrom,forming a narrow mouth 0 through which the coal issues. The portion C ofthis shelf may be removed to enlarge the mouth 0 as is usually necessarywhen the device is to be used for Below the shelf C and extending fromthe opposite wall of the chute is a removable screen D having openingsof proper size to screen out the smaller particles and dust from thecoal as it moves out of the pocket. The shelf C, C and the screen D areat an angle to each other, the lower end C of the shelf approaching theupper end of the screen D so as to form a narrow outlet (1 for the coal.A discharge opening from the chute is provided on the side B thereof andabove the lower edge of the screen. The arrangement of the shelf andscreen is such that change of direction is given to the pas sage of coalfrom the pocket to the discharge Specification of Letters Patent.

Application filed February 13, 1907.

Patented March 24, 1908.

Serial No. 357,136.

so that the coal acquires but little momentum in its travel and iseasily controlled and screened.

E is a cut-off adapted normally to close the outlet between the lowerends C of the shelf and the screen D and control the discharge of coal.It has preferably a curved face which is attached to two arms 6 whichare mounted upon a square portion of the shaft c which shaft is mountedin bearings in the side walls of the chute. The shaft runs through thewalls of the chute and at one end has a handle F attached to it. Bymoving this handle therefore the position of the gate is changed so asto open the outlet from the chute or close it as the case may be. Thisgate may be constructed in other ways, but the fact that its face iscurved as described enables it to move up easily out of the way to allowthe weight of coal in front of it to fall out from the chute, and theface being thin, made like the other parts except the screen of sheetmetal, easily finds its way back when it is desired to cut off the flowof coal from the chute.

Below the screen D the forward wall of the chute is brought outward asat B to form the support for the guiding trough B onto which the coal isdirected by the screen. The chute is provided at its lower end withhinged doors B. These doors are preferably hinged across the middle ofthe chute and are held closed against the opposite edge of the chute bycatches b of any convenient form. A chamber B is thus formed to catchthe screenings from the coal. They may be discharged at any time byunlatching the doors B and allowing them to fall.

To support the upper end of the screen D I provide short angle irons dbolted to the sides of the chute. The lower edge of the screen restsagainst an angle iron d and the upper edge of the floor of the trough BWhen the parts are in the position shown in Fig. 1, the upper end of thescreen and the cut-off prevent the escape of coal from the chute. Bylifting the cut-off the coal runs out, being screened as it passes overthe screen, the screenings collecting in the bin. Soft coal is notscreened. WVhen therefore this chute is used for soft coal the end C ofthe shelf is removed by removing the bolts which hold it in place. Thescreen is removed and a shelf d hinged at d to the interior of the chuteand normally raised and buttoned by the button (1 in its verticalposition is lowered so that it rests upon the angle irons Z and with thecut-off E closes the outlet from the chute. When soft coal is to bedischarged the cut-off is lifted and the doors B are opened so that thecoal falls directly through the chute into the wagon or other receptaclebelow.

An advantage which attaches to this apparatus lies in the fact that itcan be easily used for either of two purposes-for delivering soft coalor screening and delivering hard coaland in the latter case the passageof the coal is so tortuous that the discharge of coal can be started andcan be cut off easily at any moment no matter how much weight of coalthere is behind it. Thus the apparatus can easily be. managed by oneman. It is also apparent that the instrumentalities shown may bedifferently arranged and that by a rearrangement certain of the elementsmay be consolidated, but the form shown is simple and as it seems to me,serves the desired purpose of affording both a screening and.nonscreening chute.

What I claim as my invention is:

1. A coal gate comprising a vertical chute, a shelf extending from onewall thereof towards the opposite wall to partially close its outletwhereby a narrow mouth is'provided for the exit of the coal betweentheend of said shelf and said opposite wall, and means such as a screenlying under said mouth to change the direction of the coal issuing fromsaid mouth and screen it, and a cut-off located Within said chute forcontrolling the issue of coal from said mouth, as described.

2. A coal gate comprising a vertical chute, a shelf extending from onewall thereof towards the op osite wall to partially close its outletwhere y a narrow mouth is provided for the exit of the coal, and meanssuch as a screen lying under said mouth to change the direction of thecoal issuing from said mouth and screen it, and a cut-off located withinsaid chute for controlling the issue of coal from said mouth, asdescribed.

3. A coal gate comprising a vertical chute, a shelf extending. from onewall thereof towards the opposite wall to partially close its outletwhereby a narrow mouth is provided for the exit of the coal between theend of said shelf and said op osite wall, and aremovable screen locatedbe ow said outlet and serving to carry off the larger coal and at thesame time to screen therefrom the smaller particles and a cut-offlocated within said chute and adapted to cooperate with said shelf tochute to change the direction of movement of the coal and screentherefrom the smaller particles thereof.

5. In a coal gate, a vertical chute having an opening at one side, ashelf extending part way across said chute above said opening andpartially closing the discharge opening from said gate, a swinging shelfadapted when in its lowest position to receive the coal from said outletand change its direction and when in its upper position to make room fora screen, and means to support said shelf when in its lower position andto support said screen when said shelf is in its upper position, asdescribed. 1

6. In a coal gate, a vertical chute having means for discharging coallaterally therefrom, means for providing said chute with a contractedoutlet, and acut-oif located within said chute but outside of saidcontracted outlet and in close proximity thereto, said cut-off beingconstructed on a horizontal axis and having means whereby it may beturnedmeans for discharging coal laterally therefrom, means forproviding said chute with a contracted outlet comprising shelvessupported from opposing walls of said chute, the one above the other,and a cut-off located in front of said outlet upon a horizontal axis andhaving means whereby it is operated, said cut-off comprising twoapproximately segmental arms and a curved connecting face as described.

8. A coal gate comprising a vertical chute, a shelf extending from onewall thereof to wards the opposite wall to partially close its outletwhereby a narrow mouth is provided for the exit of the coal, a screenlocated below said outlet to screen the coal received therefrom, adischarge opening in one side of said chute to receive the coal screenedby said screen, and a dust-chamber located below said screen andprovided with a door on its under side, as set forth.

9. A gate for a coal pocket comprising a vertical chute, a shelfextending across the cross area of said chute and adapted to cooperatewith the opposing wall thereof to form a narrow mouth for the exit ofthe contents of said chute, means located below said mouth whereby thedirection of movement of the coal falling vertically through said mouthwill he changed to a lateral direction, in combination with a cutofflocated within said chute and near said mouth and adapted to control theexit of coal therefrom, as set forth.

10. A gate for a coal pocket in combination with a vertical chute, ashelf extending from one wall thereof into close proximity with theopposite wall whereby a narrow mouth is formed for said pocket, saidshelf being provided with a detachable portion whereby the said mouthmay be enlarged, a it and said wall, a second shelf located below shelflocated below said mouth and adapted said outlet and adapted to directthe move to change the direction of the coal flowing ment of coaltherefrom, anda cut-off located therefrom, and a gate located to controlthe within said chute and adapted to control the 5 flow of coal fromsaid mouth, all as depassage of coal through said outlet as de- 15scribed. scribed.

11. A gate for a coal pocket comprising a ADOLPH SUCK. vertical chute, acoal supporting shelf eX- Witnesses: tending. from one side of saidchute nearly to GEORGE O. G. OoALE,

10 the opposite Wall leaving an outlet between M. E. FLAHERTY.

